Sliding panel lock construction



Aug. 11, 1936. J. F. FETYK 2,050,695

SLIDING PANEL LOCK CONSTRUCTION Filed Aug. 7, 1955 I 2 Sheets-Sheet l 50 INVENTOR v j sep/z c E B-Y I A 50 I v TITORIQEIYS Aug.11,l936

J. F FETYK 2,050,695

SLIDING PANEL LOCK CONSTRUCTION Filed Aug. 7, 1933 2 sheets sheet 2 INVENTOR .foseph if 1 6 fy/u BY Lil Ill

Patented Aug. 11, 1936 Joseph: F. Fetyk, New York, N. Y., assignor to Francis Keil & Son, 1110., a corporation of New York Application August 7, 1933, Serial No. 683,963

27 Claims.

This invention relates to lock construction and more particularly to a construction for locking two relatively slidable closure members such as the sliding glass panels of a showcase, for example.

One of the objects of this invention is to provide a practical and dependable lock construction of the above-mentioned nature that will be of neat appearance and of ease of manipulation. Another object is to provide a construction of the above-mentioned character that is capable of being easily and quickly suited to the various widely varying conditions met with in practice, such as the varying extent of overlap of the sliding panels or closures, the varying thicknesses of the latter, and the like. Another object is to provide a simple, practical, and thoroughly reliable means for securing a lock construction of this character in place. Another object is to provide a lock construction of the above-mentioned nature which may be dependably and securely yet quickly mounted upon or secured to a glass member. Another object is to provide a construction of the above-mentioned type which may be readily and inexpensively manufactured, which may be readily installed, and which will be foolproof in actual use. Other objects will be in part obvious or in part pointed out hereinafter. V

The invention accordingly consists in the features of construction, combinations of elements, and arrangements of parts as will be exemplified in the structure to be hereinafter described and the scope of the application'of which will be indicated in the following claims. 7

In the accompanying drawings in which is shown a preferred embodiment of my invention,

Figure 1 is a front elevation of an illustrative installation of a closure embodying two relatively slidable panels with my lock construction embodied therein; V

Figure 2 is a horizontal sectional view as seen along the line 2-2 of Figure 1;

Figure 3 is a horizontal sectional view as seen Referring first to Figure 1, I have there showna frame or casing IO whose upper and lower members H--l2 are shaped in any suitable way to form guideways for the closure members l3 -I4, the latter being illustratively in the form of sheetsof plate glass. The closure members l-3 l4, hereinafter for convenience termed panels, when manually moved or slid to the left and right respectively, so as to close the frame or casing Iii, respectively abutat their remote ends against the vertical parts !5" I 6 of the frame or casing It, the panels lt-M being so dimensioned that at their adjacent ends they overlap. In Figures 1 and 2 the overlapis clearly visible and for con, venience is designated by the distan ce A. -As' shown in Figure 1, the panels l3'I4- a.re in' closing position. If now the relative sliding movement between panels I 3l 4 is suitably prevented,

access to the space of which the frame It] forms a part may be precluded. a o v v In practice, whether in existing structures or in structures undergoing manufacture, the overlap A Figures 1 and 2) frequently varies as does also the: thickness of one or both of the sliding panels fit-l4. In accordance with my invention, however, I provide a dependable construction not only for preventing relative movement between the sliding panels but also for accommodating such variations met with in practice. Considering now the lock construction per se, reference might first be made to Figure 8 of the drawings. In Figure 8 I haveshown arr L-shaped plate member B having a fiat plate portion I I generally rectangular'in shape and provided at its left -hand end with an upstanding flange l8 preferablyformed integrally therewith. The 'plate portion I1 is relatively speaking preferably of substantial area and a substantial portion thereof is countersunk as at !9 so that a pad (see Figure 'Umade' of any'suitable yielding material, preferably of rubber, may be set into the countersink 19, being preferably cemented thereto. and beingof sufiicient'thickness to project abov e'the plane of the surface'o'f" the plate portion l'l viewed in Fig ure '8. The plate portion ll, thus virtually lined with the rubber pad 20, presents a relatively large area of contact when placed flatwise against one of the panels l3l4, illustratively panel l4 (see' Figure 3). v I Plate. portion I! (Figure 8) as well as the pad 20 (Figure 7) is slotted along the central horizontal axis of the part B, the slots being shown re: spectively at 21 and 22 and serving a purpose to be more clearly described hereinafter.;'

Projecting from the right-hand face of the flange l8 as viewed in Figure 8 are two headed studs 2324, horizontally spaced from each other, while closely adjacent the junction of the parts I! and I8, the plate portion I1 is provided with two spaced threaded openings 2526 (Figure 8) adapted to have threaded thereinto, from the under side of plate portion I l as viewed in Figure 8, two screws 2'i 28 (Figures 1 and 3). These screws, as is better shown in Figure 3, are headless while the thickness of the metal of which the part B is made is suflicient to give these screws a substantial range of movement in the threaded openings 2526 without undesirably projecting to the front of the plane of the front face of plate portion I! (see Figure 3).

Coacting with the part B is a part C better shown in Figure 5, part C being also L-shaped and made up of a plate portion 29 and a downwardly extending flange portion 30 at its lefthand end. The flange portion 30 is provided with two open ended slots 3|32 spaced apart by a distance substantially equivalent to the spacing of the headed studs 2324 on the part B (Figure 8) and is of a thickness so that when these studs are received in the slots 3l32 the end flange portion 30 of the part C is snugly received between the flange portion l8 of the part B and the heads of the studs 23-24.

Still referring to Figure 5, the right-hand face of the flange portion 30 is provided with bulges 3334 spaced and dimensioned so that, when parts B and C are interfitted as above described, the under faces of the bulges 3334 are juxtaposed to the threaded openings 25-26 in the plate portion ll (Figure 8) and hence are juxtaposed to the ends of the screws 2l28 respectively (see Figure 3) The plate portion 29 is cut away or apertured to form a rectangular opening 35 (Figure 5) for a purpose to be described and on its under face, as

viewed in Figure 5, it is countersunk as indicated in Figure 5 at 33 in order thus to reecive a pad 37 (Figure 6) of a yielding material, such as rubber, adapted to serve a purpose similar to that of 'the pad 20 associated with the part B, as above described. In Figure 3 the pad 36 will be seen contacting the one face of the panel l4.

The longest dimensions of the end flanges 30 and I8 of the parts C and B, respectively, are substantially the same, so that when the latter parts are interrelated, the end flanges 30 and I8, resting one against the other, virtually mate; as seen in Figure 5, however, the width of the plate portion 36 is somewhat less than the longitudinal dimension of the flange portion 30 and this difference in these dimensions is provided in order more neatly to accommodate a saddle member D (Figures 4 and 10).

The part D comprises a plate portion 38 adapted to rest flat against the upper face of the plate portion 29 of the part C (see Figure 5) and depending side flanges or guides 39-40 (see Figures 4 and 10) which overlap the longitudinal side edges of the plate portion 29 of the part C and guide the part D as it is moved or slid (for a purpose hereinafter described) lengthwise along the part C.

The part D is also provided with countersunk slots 4|42 (see Figures 4 and 10) through which extend screws 43 (see Figure 3) respectively threaded into the threaded openings 44-45 (Figure 5) provided in the plate portion 29 of the part C, the countersinking or undercutting of these slots accommodating the heads of the screws 43, as better appears in Figure 3.

With this slot and screw arrangement, the position of the saddle D lengthwise of the part C may be determined, and fixed when the screws are tightened up; however, this action is utilized to determine the position of a downwardly projecting abutment 46 (Figures 4, 10, and 3) preferably integrally formed with the plate portion 38 of the saddle D and at the left-hand end thereof, as viewed in Figures 4 and 3. This abutment 46 projects downwardly through the rectangular aperture 35 in the part C (see Figure 5) and on its under side or face, as viewed in Figure 10, is provided with a threaded hole 4? which, with the parts B, C and D interrelated as above described and as shown in Figure 3, is juxtaposed to the slot 2| (Figure 8) in the part B; a screw 48, better shown in Figures 3 and 1, passes through the slot 2 I, the latter being countersunk as shown in Figure 3 to accommodate the head of the screw 48, and is threaded into the threaded hole 4! of the abutment 46 on the part D (Figure 3).

Before considering the various features of 00- action of these parts and their relation to and coaction with the sliding panels l3l4, it might first be pointed out, referring again to Figure 8, that the right-hand end portion of the plate portion ll of the part B is provided with a rectangular opening 49 at two opposed sides of which the inner face (the upper face as viewed in Figure 8) of the plate portion H is recessed or cut away or stepped as at 49 and 49 these features are intended to coact with certain other features later herein described.

For coaction with the opening 49 and the stepped recesses 49 -49 I provide a part E, shown in inverted position in perspective in Figure 9, the part E being built up in any suitable way to form a casing 58 whose side walls 5fl 5il 53, and 50 form a rectangle substantially matching the dimensions of the rectangular opening 49 of the plate portion I! of the part B in Figure 8 and whose front wall 59 (the bottom wall, as viewed in Figure 9) is provided with an extension 50 to the left as viewed in Figures 1, 2, 3, and 9 adapted, when the part E is fitted into the opening 49 of the part B to overlap the front face of the front panel l3 (see Figure 3) the right-hand edge of the panel I3 being intended to be abutted against the side wall 59 of the part E.

The casing 50 of the part E may be made in any suitable way and preferably is in the form of a casting; its rear wall 50 (Figure 9) is provided with a slot or guideway 5| in which is slidably mounted a bar or bolt 52, the parts being shaped in any suitable way to interfit, as by dovetailing, for example. The bolt 52 is of a thickness substantially equivalent to the depth of the recess 49 in the plate portion ll of the part B (Figure 8) and is of a width substantially equal to the width of that recess; the throw or range of movement of the bolt 52 is substantially equivalent to the dimension of the slot or recess 49 in the direction of the width of the part B, as viewed in Figure 8.

For coaction with the recess or undercut part 4.! of the part B (see Figure 8) the casing 53 (preferably the rear wall 50 thereof) is provided with an extension 53 (Figure 9) dimensioned to be snugly received within the undercut recess 49 With the bolt 52 withdrawn into its guideway 5!, the casing 50 of the part E may be inserted into the opening 49 of the part B by first entering the extension or flange 53 into the recess or seat 49 and then swinging the casing about this flange 53 as a pivot into the opening 49; if thereafter the bolt 52 is thrown into the position shown in Figure 9, the bolt enters and seats itself in therecess or seat 39 thus preventing withdrawal of the part E from the part B.

Any suitable means may. be provided for controlling or operating the bolt 52 and preferablyl provide in the front face 53 of the part E (see Figure l) a suitable roimd opening through which extends a key-receiving. cylinder 54 provided with a slot 55 for receiving a key 55 (see Figure 11), any suitable connection being providedbetween the key cylinder es and the bolt 52. Merely to indicate such a possible connection, the innermost end of the cylinder 54 (Figure 1) may be providedwith a crank arm 5? having a suitable connection such as a pin and slotrconnection, with the bolt 52 for translating the-rotary movement of the key cylinder 54 into movement one way or the other of the bolt 52 along its guideway 5l-(Fig-L ure 9).

With saddle part D held assembled to the part C by the screws 43- (see Figure 3) and with part held assembled to the part B by the screw. d8 as well as by the headed studs 2--2l (Figure 8) the construction BC-D may now be fitted to and. secured to one of the panels, such as .the panel- Hi, the latter being the innermost of the two (see Figures 3 and 2). of achieving this assembly of these parts to the panel li may proceed as follows:

Hav ng determined the amount of overlap A (see Figure 1) between the twosliding panels, screws 3 (see Figure 3) may be loosened up so as to permit the saddle D to be shifted relative to the screws 33 to a sufiicient extent to provide a I distance or spacing between the right-hand wall of the abutment it and the left-hand edge of the opening 43 (see Figure 8) in the part B equivalent to this amount of overlap A; the screws 33 may then be tightened up, thus locking the parts C and D together.

Thereupon the parts DCB are slid onto the left-hand edge of the panel l l (panel'lS being moved to the right for convenience) so that the left-hand portion of the panel it is received between the parts C and B (Figure 3) the plate portions 29 and ll of these parts presenting to the side face of the panel M the cushions orpads 3'! and 25, respectively, and forming virtually the arms of a U whose base is formed by the abutment t5 against which the left-hand edge of panel l l abuts.

The abutment Q8, moreover, in thus contacting with the left-hand edge of the panel it alines the entire construction accurately with respect to the horizontal or vertical, the interiitting guiding parts of the saddle D and the part C and in turn of the parts C and B insuring the proper maintenance of alinement of the various parts in this respect.

crews 2l23 (see Figures 1 and 3) and 33 are now manipulated, screws 27-28 being unscrewed or screwed in and screw 58 being unscrewed or screwed in or vice versa as the case may be in order to bring the plate portions 25 and H of the parts C B, respectiveiy, toward each other to securely clamp the panel i l therebetween while maintaining, however, parallelism between these plate portions 29 and H, thus uniformly to distribute the clamping pressure throughout the relatively large areas through which these plate portions, through the pads 55? and 28, grip the panel l4.

These interrelations between. these :partsand the control of these interrelations by means of A preferred and possible way function and action makes it possible for met.

quickly and dependably to achieve a uniform andsecure clamping action throughout.

Where, the panel is of glass, the pads or cush--:- ions 3'! and 29 (Figures 3, 6, and 7) aid not. only. toward achieving uniformity of clamping pressure but also, where these pads are of rubber, toward the gripping action directly, having in 1. effect a vacuum cup action in that theclamping pressure drives out the air from in between the -pads and the glass surface and thus the effect of atmospheric pressure is added to hold the parts to' theglass panel.

The immediately above-described featuresof' construction and operation also make it possible readily toaccommodate the construction to vary-- ing thicknesses of panel in thatthe screws El 28 3 and 48 make it possible-to achievevarying distances between the gripping faces .of-the parts B and C whileat the same tiine mak-ing it possible toachieve such parallelism or-other relation necessary to achieve uniformity of clamping action or pressure. Thus, the construction may be' easilyi" and quickly attached to panels of varying thicknesses. Should theoverlap A (Figures l and?) vary, that can be compensated for by-a suitable shift in the saddle D and hence in the abutment 3G with respect to the part C and hence with respect to the part B, thus 'varyingthe depth of the above-mentioned U and thus bringing the -left-' hand edge of the opening &9 (see Figure 8) of i the part B substantially in line with -the'-rig-ht-'-"-'- hand edge (see Figure 3) of the panel is, when both panels are moved to their extreme left and right-hand portions respectively.

The plate portion I? of the part B (Figures 2 and 3) is relatively snugly accommodatedin the relatively narrow space between the slidingpanels l3-l4; such a space is practically invariably present in sliding panel constructions of -this--- character and thus the application of the assembled parts D, C and B to the panel-M does not interfere in any way with the fre'edomfof relative sliding-betweenthe two panels. 7

As above noted, the left-hand edge of the open- I ing 49 in the part B (Figure 8) becomes thussubstantially alined with the right-hand edge of the panel 13 (Figures 2 and 3); if, now, it is desired to lock the panels against movementpthe part E (Figure 9) is taken and the key 56 inserted;

having a slot 50 adapted to mate with the keyreceiving slot when the keycylinder-E-is,in' m a the position with the bolt 52 projected or thrown. Certain unique advantages that flow from these features I mention later hereinafter.

The part E is now inserted into the opening 49 .in the part B, it being noted, as is shown in part in Figure 3, that now the front face of the panel l4 forms a bounding wall partially closing the undercut recesses 49 and 49 (see Figure 8) into which the projecting flange 53 and the bolt 52 are respectively to be received.

Accordingly, the projecting flange 53 is first inserted into the recess 49 whereupon the part E is pivoted, as it were, about the flange 53 as an axis, thus to carry the rear face 50 (Figure 9) into and through the opening 49 and to bear against the front face of the panel l4 (Figure 3). By the same operation or movements, the overhanging part 50 (Figures 9, 3 and 2) is carried into overlapping relation with respect to the front face of the panel I3 While the end or side wall 5!) (Figure 9) is brought into alinement With and up against the right-hand edge of the panel l3 (see Figure 3).

The key is thereupon turned to throw the bolt 52 into the opposite recess 49* (Figure 8), the turning of the key bringing the key cylinder 54 into the position shown in Figure l where the slots 55 and 5!] come into alinement and thus the key 56 may be withdrawn.

Thus, the panels can no longer be moved with respect to each other and it will be noted also that the overlapping part 5i] so interlocks with the panel l3 and is thereby interlocked with the panel N that movement of either panel in a direction transverse of its plane is prevented. Thus, the casing or frame of which the panels I3-l4 form the closure is dependably closed and locked closed against unauthorized access to the interior or contents thereof.

In order to facilitate the insertion of the part E as above described, the front face of the part B (see Figure 1) is provided with a suitable marking indicated at 59, outlining on the front face of the part B the shape of the undercut recess or slot 49 thus to indicate that, as viewed in Figure 1, the broad or wide flange or projecting part 53 (Figure 9) of the part E should be uppermost when the part E is inserted into or related to the part B.

To unlock the closure, the key is, of course, inserted into the alined slots 5550 and rotated, thus to withdraw the bolt 52 from in behind the plate portion I! of they part B, whereupon the part E may be swung out of position and removed. Freedom of relative sliding action of the panels at once results. However, the swinging of the key 56 (Figure 11) into unlocking or unlocked position causes the ring-like flange 5!! (Figures 1 and 11) on the front face of the casing 55 to ride into the slot 56 on the key shank, whereupon withdrawal of the key is prevented. The key is thus held in assembled relation to the part E which is then placed in any convenient place until such time as it becomes necessary to again 'lock the closures l3-I 4 but during that interval,

the interlocking of the key with the casing prevents loss of the key so that key and casing are always ready when it becomes necessary to lock the closure.

The parts B, C and D may be and conveniently are of cast metal whereby the various countersinks, slots, recesses, and the like, may be readily cast or formed therein during the casting operation. Thus, the parts may be readily and inexarms of said U-shaped means toward the other pensively made and a. relatively sm'an amount of machining need be resorted to.

The saddle D, when clamped by screws 43 (Fig ure 3) to the part C, as is the case in practice, substantially reinforces the plate portion 29 of the part 0, this reinforcement extending also to the side portions of the plate portion 29 that are on either side of the aperture 35 (see Figure 5). The flanges 3940 (see Figures 4 and 10) extending lengthwise of the saddle D give the plate portion 38 of the saddle D very substantial rigidity and resistance to bending and these strengthening or reinforcing characteristics are, by the above-described clamping action, transmitted and conveyed to the part C itself. Thus, dependable rigidity may be achieved even though the parts are made of relatively light metal stock,

It will thus be seen that there has been provided in this invention a sliding panel lock construction in which the various objects hereinbefore noted together with many thoroughly practical advantages are successfully achieved. It will be seen that the construction is of a thoroughly practical character, is characterized by great ease of installation and manipulation and, C

moreover, is exceedingly well adapted to meet the many varying conditions met with in practice.

As many possible embodiments may be made of the above invention and as many changes might be made in the embodiment above set forth, it is overlap, comprising, in combination, U-shaped means within which an overlapping end of one of said panel members may be received, said means being provided with a plurality of independently operable means for moving one of the arms of said U-shaped means toward the other and to determine the angle between and to bring about and maintain substantial parallelism of said arms, thereby to clamp said one panel member therebetween, one of said arms having a portion extending along said one panel member beyond a;

the overlapping edge portion of the other panel member, a device adapted when related to said extended portion of said arm to coact with said U-shaped means to limit movement of one of said panel members relative to the other, and means i for interlocking said device to said extended portion of said arm.

2. A construction of the character described, for securing against movement a pair of panel members, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in combination, U-shaped means within which an overlapping end of one of said panel members may be received, means positioned between the base of said U-shaped means and the edge of the said one panel received therein for controlling the angle between the arms of said U-shaped means and for forcing one of the thereby to bring the respective contacting faces of said arms and said one panel member into alinement and to clamp said one panel member therebetween, the arm of said U-shaped means that extends between said panel members extending beyond the overlapping edge portion of the other panel member, and key-controlled me'ans 'relatedto said extended portion of saidarm and projecting into the plane of said other panel member.

'3. A construction of the character described, for securing against movement a pair of panel members, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in combination U-shaped means within which an overlapping end of one of said panel members may be received, said U- shaped means having its two arms movable one toward the'other and provided with telescoping means for guiding one arm relative to the other, means for causing the arms-"off said U-shaped means to grip said one panelmember',and means related to said U-shaped means and adapted to be projected into or out of the plane of said other panel member.

4. A construction of the character described, for securing against movement a pair of panel members, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in combination, U-shaped means within which an overlapping end of one of said panel members may be received, one of the'arms of said U-shaped means being'provided with means for coacting with, and holding against movement, said other panel member, and means for varying the depth of said U-shaped' means, thereby to aline said last-mentioned means with the edge portion of said other panel member. a

5. In a construction of the character described, in combination, a frame made up of two spaced partsbetween which a panel member or the like may be gripped,'means for adjustablydrawing said two parts together, thereby to grip an'interposed member, and ablock-like member having key-controlled means and having a plurality of projecting members, at least one of which is controlled by said key-controlled means, one of said parts having a recess through which a portion of said block-like member, when said key-controlled projecting member thereof is withdrawn, is passed, said projecting members, when 'the keycontrolled member thereof is projected, preventing removal of said block-like member out of said recess.

6. In a construction of the character described, in combination, a frame made up of two spaced parts between which a panel member or the-like may be gripped,means connecting said parts adjacent one end of'eachj an abutment between said twopa'rts and intermediate theends for'limiting the depth to which a member may be received therebetween, means for fixing the position of said abutment, means causing said spaced parts to grip a member interposed therebetween, and key controlled movable meansrelated to one of said parts.

7. In a construction of the character described,

"in combination, a frame made-up of two spaced parts between which a panel member or the like -m'ay bee'g'rippedg me'ans connecting said parts ad- -'jacent one end of each, an abutment between said two parts and intermediate the ends for limiting the depth to which a member'may be "received therebetween, means slidably relating said abut- -ment to one of said parts and for holding it in position relative thereto, means for causing said parts to grip an interposed member, and key-controlled means related to'said frame.

9; In a construction of the character described, in combination, a frame made up of two. spaced parts between which a-member such as a panel or the like may be'received, means movably relating saidtwo'parts andadapted to permit variation of the spacing therebetween, -means' movably related to'said frame'and interposed between said -spaced parts for limiting the extent to which a panel may be received therebetween, and means adaptedto 'coact with a key-controlled means associated with'said'frame.

"10. In a construction of the character described, in combination a frame made up of 'twospaced parts between which a member such as a panel or the like may be received, limiting means extending into the space between-said spaced parts for limiting the extent to which an interposed -m'ember may be received therebetween, means --movably mounting said limiting means, thereby to pe'rmit change in itsposition, and lock means related to said frame. 1

11. In a construction of the character described, in combination, a frame' ma'de 'up of two spaced parts between which amember' such as "a panel 'or the like'may be received, connecting m'eans between said two parts positioned outside "of the space occupied by the'portion of the panel received between'said two spaced parts and operable thereon at two'points spaced lengthwise of said frame; one'of said connecting means being 'of variable length, and key-cont'rolled means re- --latedto said frame.

-12; "In a construction of the character de- --s'cribed, in combination, a frame made up' of two spaced parts between which a member such as a'panel or the 'likemay be received, means po-.

sitioned outside of the 'space occupied by the portion 'of the 'panerreceived'between said two spaced parts between which a'member such as panel or the like "may be received, a plurality -of means positioned outside of- -the space occupied by the portion of the panel received-between said two spaced 'parts' interengaging said two parts at two spaced points adaptedeach'to act 5 as a fulcrumand each having'mea'ns for'permitting the' applicationthrough it of a'fo'rce for moving bnememben'of said spaced parts" 'about tl 1e other of 'said means as a fulcrum, and means related to said frame, for coacting with a keycontrolled means.

14." In'= a construction of the' character describedfin combination, a "frame made up of two 'subs't'antially-L' s'haped members with their respective sli'ortarms in sliding engagement,- whereby the spacing between the long arms thereof "-m'ay'be varied'fmeans for determining the spacing between said long arms, thereby to'accommodate thelatter tdthe reception of one member of aclosure therebetween; said means being poparts between which a panel member or the like sitioned be'tween the-edge of the closure member received therein and that edge of the frame adjacent said short arms, and means associated with said frame and adapted to coact with another member of a closure.

15. In a construction of the character described, in combination, a frame made up of two substantially L-shaped members with their respective short arms in sliding engagement, whereby the spacing between the long arms thereof may be varied, said frame receiving between the free portions of the long arms a closure member, means connecting said long arms intermediate their ends and adapted to function as a fulcrum, means for determining the amount of overlap between said short arms and adapted when operated to swing one of said long arms about said connecting means as a fulcrum, thereby to accommodate said long arms to the thickness of said closure member interposed therebetween, said two means being positioned within the region outside of those portions of the long arms that engage said closure member, and key-controlled means related to said frame and adapted to cooperate with another closure member.

16. In a construction of the character described, in combination, a frame made up of two substantially L-shaped members with their respective short arms in sliding engagement, whereby the spacing between the long arms thereof may be varied, means connecting said long arms intermediate their ends, a screw threaded into one part and abutting against the edge of the short arm of the other part and operable to determine the spacing between said long arms to accommodate it to one member of a closure, and means carried by said frame for coaction with another member of said closure. 7 g

17. A construction of the character described, for holding a closure member to a coacting closure member, comprising, in combination, a platelike member secured to one of said closure members and having a plurality of undercut recesses facing toward the other closure member, a casing member having key-operated means therein and having a plurality of projecting parts at least one of which is controlled by said key-operated means and adapted to be received within said undercut recesses.

18. In a construction of the character described, in combination, a substantially U-shaped means having between the arms thereof a stop member for limiting the extent to which a closure member may be received between said arms, means mounting said stop member for adjustment in a direction to vary the extent to which said closure member may be received between said arms, and key-operated means related to said U-shaped member for coaction with a coacting closure member.

19. A construction of the character described for securing against movement a pair of panel members or the like, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in combination, a frame made up of two spaced parts between which an overlapping end of one of said panel members may be received, means positioned outside of the space occupied by the portion of the panel received between said two spaced parts for engaging said two parts at two spaced points adapted each to act as a fulcrum and having means for permitting the application through it of a force for moving one member about the other of said means as a fulcrum,

means substantially telescopically relating said members or the like, one of which is slidable remtive to the other and adapted when in closing position to overlap, comprising, in combination, a frame made up of two spaced parts between which an overlapping end of one of said panel members may be received, means positioned outside of the space occupied by the portion of the panel receivedbetween said two spaced parts for engaging said two parts at two spaced points adapted each to act as a fulcrum and having means for permitting the application through it of a force for moving one member about the other of said means as a fulcrum, means substantially telescopically relating said two spaced parts of said frame for movement of said two parts one toward or away from the other, and means related to said frame and adapted to. be projected into or out of the plane of said other panel member.

21. A construction of the character described for securing against movement a pair of panel members or the like, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in combination, a frame made up of two spaced parts between which an overlapping end of one of said panel members may be received, meanspositioned outside of the space occupied by the portion of the panel received between said two spaced parts for engaging said two parts at two spaced points adapted each to act as a fulcrum and having means for permitting the application through it of a force for moving one member. about the other of said means as a fulcrum, means substantially telescopically relating saidtwo spaced parts of said frame for movement of said two parts one toward or away from the other, said frame having a part that extends between said two panel members and along the face of said one panel member and beyond the overlapping edge of the other and being apertured to receive key controlled bolt means and for thereby becoming interlocked therewith.

22. A construction of the character described for securing. against movement a pair of panel members or the like, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in'combination, a frame made up of two spaced parts between which an overlapping end of one of said panel members may be received, means positioned outside of the space occupied by the portion of the panel received between said two spaced parts for engaging said two parts at two spaced points adapted each to act as a fulcrum and having means for permitting the application through it of a force for moving one member about the other of said means as a fulcrum, means substantially telescopically relating said two spaced parts of said frame for movement of said two parts one toward or away from the jother, said frame having an extended part extending between said two panel members and beyond the overlapping edge of the other panel member, said extended. part being recessed. and a casin like member having key-controlled bolt means, coacting with said recess for interlocking said casing-like member with said extended part and for thereby preventing disengagement between said extended part and said casing-like member, the latter being shaped to overlap the overlapping edge portion of said other panel member, whereby relative movement between said panel members is prevented.

23. In a construction of the character described, in combination, a frame made up of two spaced parts between which a member such as a panel or the like may be received, two means positioned outside of the space occupied by the portion of the panel received between said two spaced parts and engaging said two parts at spaced points, one of said means comprising screw means connected to said two parts to permit said parts to be drawn together and the other of said means comprising screw means in threaded engagement with one of said parts and abutting the other of said parts and thereby adapted to permit said parts to be forced apart, each of said means being adapted to act as a fulcrum whereby, upon manipulation of said two screw means, the angle or parallelism between said two parts may be mated to the angle or parallelism between the faces of the panel respectively engaged thereby, and means related to said frame for coacting with a key-controlled means.

24. In a construction of the character described, in combination, a frame made up of two spaced parts between which a member such as a panel or the like may be received, one of said parts having flange means laterally overlapping the other of said parts, thereby effecting a telescopic relation therebetween, two means positioned outside of the space occupied by the portion of the panel received between said two spaced parts and engaging said two parts at spaced points, one of said means comprising screw means connected to said two parts to permit said telescopically related parts to be drawn together and the other of said means comprising screw means in threaded engagement with one of said parts and abutting the other of said parts and thereby adapted to permit said telescopically related parts to be forced apart, each of said means being adapted to act as a fulcrum whereby, upon manipulation of said two screw means, the angle of parallelism between said two parts may be mated to the angle or parallelism between the faces of the panel respectively engaged thereby, and means related to said frame for coacting with a key-controlled means.

25. A construction of the character described for securing against movement a pair of panels, one of which is slidable relative to the other and adapted when in closing position to overlap, comprising, in combination, a plurality of means generally U-shaped and within which an overlapping end of one of said panels may be received, one of said means having a part that extends between the overlapping panels and along the face of said one panel and beyond the overlapping edge of the other, said part being adapted to coact with a key-controlled means that is adapted to engage the overlapping edge portion of said other panel and thereby prevent relative movement between the two panels, said plurality of means being slidably related to each other for relative sliding movement in the direction of the thickness of said one panel, thereby to accommodate said U-shaped means to the thickness of the panel, and in a direction lengthwise of said extended part, thereby to accommodate the latter to the amount of overlap between said panels, and means for anchoring said plurality of means against relative sliding movement and for effecting a gripping therebetween of said one panel.

26. A construction as in claim 25 in which the anchoring means includes means positioned outside of the space occupied by the portion of said one panel received between said plurality of means and engaging the latter at two spaced points adapted each to act as a fulcrum and each being of variable length.

27. A construction as in claim 25 in which the anchoring means includes a slot in one of said plurality of means extending in the direction of the overlap of the panels and a clamping screw coacting through said slot to anchor said plurality of means for accommodation of said part to a given overlap.

JOSEPH F. FETYK. 

